PERT tubing 1/2"

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1/2" Heatflex PE-RT plastic tubing with O2 barrier for radiant heating. PE-RT is strong, kink-resistant, extremely flexible (more than PEX), less expensive than PEX; uses the same fittings as PEX. Oil Creek Heatflex PE-RT tubing is marked at 2' intervals so you always can know how many feet you have used in your loop.